function Tools () {

}

Tools.prototype = {
    init: function (el) {
        this.el = el;
        this.items = el.querySelectorAll('li');

        if ('function' == typeof this.bindEvent) {
            this.bindEvent();
        }
    },

    show: function () {
        this.el.style.display = '';
    },

    hide: function () {
        this.el.style.display = 'none';
    }
};
